Part a A farmer applies 1705 kg of a fertilizer that contains 10.0% nitrogen to his...

Part a

A farmer applies 1705 kg of a fertilizer that contains 10.0% nitrogen to his fields each year. Fifteen percent (15.0%) of the fertilizer washes into a river that runs through the farm.

If the river flows at an average rate of 0.315 cubic feet per second, what is the additional concentration of nitrogen (expressed in milligrams of nitrogen per liter) in the river water due to the farmer's fertilizer each year? Answer: ? mg/L

Part b

Heptane and water do not mix, and heptane has a lower density (0.684 g/mL) than water (1.00 g/mL). A 100-mL graduated cylinder with an inside diameter of 3.22 cm contains 36.8 g of heptane and 34.8 g of water. What is the combined height of the two liquid layers in the cylinder? The volume of a cylinder is π r²h, where r is the radius and h is the height. Answer: ? cm

Expert Solution

part a

Answer is 0.0898 mg/L

part b

Answer is 10.88 cm

queen_honey_blossom answered 2 years ago

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